PDP and APN Types
SUBJECT:
PDP and APN Types
FACT:
Access Point Name (APN)
Packet Data Protocol (PDP)
Unable to Connect to the Internet
FIX:

Overview

AT&T uses APNs to provide customers with specific data services based on the definition of the APN as defined within the provisioned data rate plan. Each APN enables access to the internet; however, that access and associated billing may be different from APN to APN. Review the table below to get an understanding of what each APN is designed for and when it should be used. When troubleshooting a connection to the internet, be it on a handset, PDA or PC card, the APN plays a key role.

IMPORTANT:

  • The actual APN name as well as its associated username and password are all case-sensitive.
  • Not sure what data plan you have? Find out now.
  • If unsure which APN to use, please contact Customer Care.

APN definitions and appropriate usage scenarios

Access Point Name (APN) Details and usage Username/Password

wap.cingular

*Must be entered in lowercase*

  • Provisioned for usage with GSM/GPRS/UMTS handsets and PDAs.
  • Does not allow tethering (using phone as a modem) of a handset or PDA for internet access on a computer.
  • Provides a dynamic, private IP address.
  • Exclusively used by handsets and PDAs for Xpress Mail, Good Mobile Messaging, Exchange ActiveSync, Device Based E-mail, and Device Based Internet Browsing of both WAP (MEdia Net) and HTML.

*Both must be entered in all CAP*

isp.cingular

*Must be entered in lowercase*

  • Allows internet access on a laptop using a PC card.
  • Allows tethering (using phone as a modem) of a handset for internet access on a computer.
  • Provides a dynamic, public IP address.
  • Exclusively used by PC Cards and handsets to access the internet on a computer. This APN must NOT be used for Xpress Mail, Good Mobile Messaging, Exchange ActiveSync, Device Based E-mail, and Device Based Internet Browsing of both WAP (MEdia Net) and HTML -- errors will result and the service(s) will not work correctly.
  • When used by handsets, this APN would be configured by the Communication Manager desktop application to connect—the APN should not be configured in the handset device settings.
    • blackberry.net
      • Provisioned for usage with a RIM BlackBerry device and service.

      The username/password combination for this APN is automatically set by a service book during activation.

      Commercial Connectivity Services (CCS)
      and Telemetry

      APN Varies

      • Used for specific mobile setups such as enterprise customers who use remote applications like Telemetry or CCS. For instance, vehicle tracking in which a driver doesn't have to initiate a location update.
      • Offers a high level of security and availability for enterprise users.
      • Provides a dynamic OR static, public IP address dependant on the setup.
      The username/password combination for this APN is customized based on the enterprise needs.




      If you are viewing information on devices or services, please note: content reflects instructions for devices and services purchased from AT&T.
      Some differences may exist for devices not purchased from AT&T.


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